Felix Williamson portrayed Ian McVay in the
Season 2 episode "?".
My collection includes an autograph card
signed by Felix Williamson from his role as Prince Clayvor
in "Farscape Through the Wormhole".
I also have Ian McVay's Diploma from
Sydney New South Medical College.
It was purchased from the LOST Prop Warehouse Sale in Hawaii.
The diploma can be seen hanging to the far left in the screencaps below.